Seiko Cal. 6690 - 779

The Seiko 6690-779 represents an important milestone in Seiko's 1978 lineup. It features a White dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-406169a63a72]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

19j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1978

Related Models

• Seiko 5236-275
• Seiko 7126-970
• Seiko 6365-745
• Seiko 5298-524
• Seiko 6218-658
• Seiko 3860-561
• Seiko 6295-235
• Seiko 7129-978
• Seiko 6343-113
• Seiko 6355-385
• Seiko 5252-206
• Seiko 6167-719